The Martin Authentic Acoustic Flexible Core Phosphor Bronze Guitar Strings are designed to reduce finger fatigue and allow huge bends. They feature a lighter gauge version of our Superior Performance core wire combined with heavier wrap wire to deliver a full and balanced tone with increased flex and playability. Martin's impeccable standards for acoustic guitar tone are embedded in their string design and precision manufacturing process, making them some of the best acoustic strings you can have! This 6-string set is gauged at 12-54 Light.

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